CMMVC8992E The maximum number of host/IO group pairs for the cluster is already configured.
Explanation
You must remove at least one host I/O group pair definition before you can resubmit the command.
User response
Determine whether the action is required.
If the action is required, review the current configuration to determine whether any current host I/O group pair definitions are not required. Remove at least one host I/O group pair definition that is not required, and resubmit the command.